Air filtration system



FIG. 1 is an isometric view of a first embodiment of an air filtration system of the present invention;

FIG. 2 is a first side elevation view of the first embodiment;

FIG. 3 is a rear elevation view of the first embodiment;

FIG. 4 is a front elevation view of the first embodiment;

FIG. 5 is a second side elevation view of the first embodiment;

FIG. 6 is a top plan view of the first embodiment;

FIG. 7 is a bottom plan view of the first embodiment;

FIG. 8 is an isometric view of a second embodiment of an air filtration system of the present invention;

FIG. 9 is a first side elevation view of the second embodiment;

FIG. 10 is a rear elevation view of the second embodiment;

FIG. 11 is a front elevation view of the second embodiment;

FIG. 12 is a second side elevation view of the second embodiment;

FIG. 13 is a top plan view of the second embodiment; and,

FIG. 14 is a bottom plan view of the second embodiment.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an air filtration system, as shown and described. 